A19AAF-12C Johnson Controls Temperature Control

Overview

The Johnson Controls A-4300-600 is an industrial-grade service bypass valve engineered for use with A-4300 and A-4400 Series refrigerated air dryers in pneumatic control systems. It allows technicians to safely isolate or bypass the air dryer for routine servicing, repairs, or filter replacement without interrupting the downstream compressed air supply, ensuring operational continuity.

Features

• Straightforward manual plunger design for quick field adjustments between service and bypass modes.
• Integrated locking pin mechanism to secure the plunger position and prevent accidental state changes.
• Robust, durable construction designed to minimize the risk of air leaks and system pressure drops.
• Allows full maintenance and system isolation without requiring a complete building automation or HVAC system shutdown.

Specifications

• Brand: Johnson Controls
• Model Number: A-4300-600
• Accessory Type: Service Bypass Valve
• Compatibility: For use with A-4300 and A-4400 Series Air Dryers (date codes through RY1 9923)
• Weight: 2.0 to 3.0 lbs
• Dimensions: 6 x 4 x 3 inches
• Cross References: CJ3APL, 38Y103, 02-376-416

Applications

• Specifically designed for bypassing Johnson Controls A-4300 and A-4400 series refrigerated air dryers.
• Commercial HVAC and building automation systems utilizing pneumatic controls.
• Industrial fluid control and air regulation setups requiring maintenance bypass capabilities.